Red Hat Security Advisory: kernel-rt security update
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 18:20 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
AI-suggested
Red Hat has released an official security update for kernel-rt that fixes the memory accounting leak. Users should apply the update as described in the Red Hat advisory and reboot affected systems to ensure the fix takes effect. No additional mitigation steps are indicated.
Description
A security update for the Red Hat kernel-rt package addresses a memory accounting leak in the UDP implementation (CVE-2025-22058). This vulnerability affects the Real Time Linux Kernel used for systems requiring high determinism. The update is rated as having moderate security impact. Systems must be rebooted after applying the update for the fix to take effect.